Inks For Full Color Inner Frame For Cigarette printing

Inks For Full Color Inner Frame For Cigarette printing

Perhaps in the eyes of the general public, compared with the monochrome sample printing and color sample printing, the process is simple, and the requirements for ink will be relatively low. However, in practice, printers point out that monochrome sample printing has no low requirements for ink, and ink modulation has a great impact on the quality of monochrome sample printing.

Due to the polarity of the ink adsorption is stronger, it will promote the production of emulsification, ink viscosity will increase its cohesion, that is, the viscosity of ink between molecules to strengthen the adhesion. Therefore, in the monochrome sample printing, to strengthen its water resistance, and the ink viscosity must be adjusted in the printing process, in order to achieve suitable printing suitability, so as to affect the emulsion of ink. Professionals will be in the deployment of ink, add appropriate amount of control, general ink oil not only dilute the ink, but also increase the fluidity of the ink, reduce the viscosity, the cohesion between molecules weakened, affect the ink water ability, will lead to emulsification.

From the point of view of the pigment properties of ink, a variety of different colors of ink, the use of pigment parts are different, determines the difference in emulsification value. For example, the ink made of carbon ink pigment has a small emulsifying value and is not easy to emulsify. This is mainly because carbon ink has good hydrophobicity. For the inks made from lake pigments, the structure of the ink is easy to be damaged in the printing process due to the hydrophilic properties of the pigments such as aluminum hydroxide and aluminum barium white. The pigment particles may play the role of emulsifier, leading to the emulsification of the ink.

As for the influence of auxiliary materials in monochrome sample printing. In the ink will generally add the drying agent, scattered sticky, scattered light and other auxiliary materials, the main component of the drying agent is metal soap, and residual water-soluble salt substances, it has strong moisture absorption, but also acts as a strong emulsifier. Add a certain amount of drying agent in ink, can accelerate the drying of oil. But excessive addition will also have a negative effect, can lead to ink emulsification, and reduce ink drying speed.